I earn about £29k before tax, FT classroom teacher in London, no additional responsibilities (yet!)
I absolutely LOVE my job, and changed from university lecturing to do this.
DH works in management and earns something over £60k with benefits (car, fuel, private healthcare, blah blah)
I work from about 7.30/8 to 6pm every day at full tilt and then enjoy my evenings, weekends and holidays.
DH works all sorts of hours, very long, but has jumped salary at the rate of £10k a year since starting in the company. He likes, but doesn't love, his job.
In the future (when I apply for more responsibilty, etc) I will hopefully earn more, but the job satisfaction(not to mention job security) are a great 'bonus' in themselves 
If I'm honest, though, if DH did not earn more (and stand to continue to do so) I would probably be keen to earn more myself with a sense of urgency. We probably earn the least out of all our friends and family at the same age/level, so although we are happy as larry, it shows how what a 'good' salary is becomes relative sometimes
.
In conversation, if asked I would say that we have 'decent' income, as opposed to 'good'. Only because I know so many people who earn so much more than us. Don't know how I feel having just typed that, tbh. Don't really care what other people earn, it's not why I believe most people choose their careers.
Interesting thread, esp regarding what you would encourage your dc to do. I would say that loving your job is a bonus in itself, and relieves a lot of stress potential. But back it up with qualifications and be aware of all the options and opportunities open to you, and never be ashamed of earning money (ethically!) - as is often said, there is no shame in being poor, but it's no great honour, either! 